根据句意及首字母的提示,补全单词。 1. When we meet for the first time, we usually s ____ hands. 2. I don't want to eat anything. I'm f______. 3. I often brush my teeth with this kind of t______. 4. I,t is a good way to ____ HINl by washing hands with soap. 5. I don't know the man. He is a s ____